scholarly journals CONCOMITANT ANAPHYLACTIC SENSITIZATION AND CONTACT UNRESPONSIVENESS FOLLOWING THE INFUSION OR FEEDING OF PICRYL CHLORIDE TO GUINEA PIGS

1966 ◽  
Vol 124 (1) ◽  
pp. 69-80 ◽  
Author(s):  
Jerome R. Pomeranz ◽  
Philip S. Norman
Keyword(s):  
Large Dose ◽  
Guinea Pigs ◽  
Contact Hypersensitivity ◽  
Passive Cutaneous Anaphylaxis ◽  
Picryl Chloride ◽  
Circulating Antibody

Guinea pigs receiving one large dose of picryl chloride by the intravenous or oral routes commonly develop circulating antibody demonstrable by passive cutaneous anaphylaxis or by active anaphylaxis. They often concommittantly become unresponsive to the induction of delayed contact hypersensitivity by intracutaneous injections. Erythrocytes obtained from guinea pigs after infusion or feeding of picryl chloride may be used to sensitize other animals when injected with adjuvant. It is concluded that guinea pigs may be anaphylactically sensitized to simple chemicals by the intravenous and oral routes if a sufficient dose is administered.

Concluding remarks

1956 ◽  
Vol 146 (922) ◽  
pp. 90-92 ◽  
Keyword(s):  
Guinea Pigs ◽  
Current Trend ◽  
Distinct Type ◽  
Single Species ◽  
Immunological Tolerance ◽  
The Body ◽  
Immunological Reaction ◽  
Picryl Chloride ◽  
Purified Antigen ◽  
Circulating Antibody

In many ways immunological tolerance is an ideal subject for discussion at the present time. Experimental work has gone far enough to allow us to claim that the principle of immunological tolerance is soundly established and that we can see more or less clearly some of its implications. But obviously very much remains to be learnt of the part played by tolerance in the various fields that have been discussed. It is by no means certain that we are dealing with a single topic when we compare tolerance to homografts with inhibition of antibody production against soluble protein in a rabbit. Such a situation provides much for discussion but does not make it easy to condense or interpret that discussion. One might begin by reiterating that immunology is concerned with much more than the production and properties of typical circulating antibody. There are at least four different types of immunological reaction and there are hints of many minor differences within the main types. Pappenheimer’s recent work on the variety of responses given by a single species, man, to a single purified antigen, diphtheria toxoid, offers a characteristic example of the current trend. Chase’s experiments on the response of guinea pigs to simple allergens like picryl chloride, have been only incidentally mentioned in today’s discussion, but their importance is obvious. A form of tolerance very similar to that produced by prenatal treatment of mice can be produced by administering the allergen to adult guinea-pigs by mouth. The animals are resistant to sensitization by skin treatment and the inhibition is general and unrelated to any persistence of allergen in the body. The question immediately arises whether all forms of tolerance are basically similar or whether for each of the qualitatively distinct types of positive immunological reaction, a correspondingly distinct type of inhibition or tolerance must be sought.

scholarly journals INDUCED UNRESPONSIVENESS TO SIMPLE ALLERGENIC CHEMICALS

1965 ◽  
Vol 121 (4) ◽  
pp. 591-606 ◽  
Author(s):  
Jack R. Battisto ◽  
Merrill W. Chase
Keyword(s):  
Guinea Pig ◽  
Specific Antibody ◽  
Guinea Pigs ◽  
Subsequent Development ◽  
Intradermal Injection ◽  
Contact Hypersensitivity ◽  
Delayed Type Hypersensitivity ◽  
Contact Type ◽  
Specific Contact ◽  
Picryl Chloride

Normal guinea pigs fed chemical haptens develop a specific state of unresponsiveness, inhibiting subsequent development of dermal sensitization with the same hapten and modifying profoundly the synthesis of anaphylactic antibody in response to hapten conjugated to guinea pig proteins. The degree of unresponsiveness has been tested by exposing hapten-fed animals to intense haptenic stimulation. Animals of groups that were demonstrably unresponsive to picryl chloride could be made to form hapten-specific antibody by injecting picrylated bovine gamma globulin. Specific anaphylactic-type antibodies, presumably 7S γ1, were synthesized, and in animals given PBGG adsorbed to alumina there arose a measurable concentration of precipitating antibody, presumably 7S γ2, perhaps slightly earlier than in similarly treated control animals. Attempts to impose contact-type reactivity on such unresponsive animals met with limited success. Injection of picrylated guinea pig erythrocyte stromata in a complete Freund's adjuvant, with subsequent applications of picryl chloride to the dermis, led to definite contact sensitivity to 0.3 per cent picryl chloride, whereas parallel treatment of normal control animals induced sensitivity to 0.006 or 0.002 per cent. By this double method of stimulation, hapten-fed animals did not advance in sensitivity by reason of the secondary dermal applications of the simple chemical, whereas control animals developed increasingly higher sensitivity by these contacts in what appeared to be a stepwise manner. Picryl chloride-fed guinea pigs injected intradermally with picryl chloride either after or before forming picryl-specific circulating antibody still remained unable to develop picryl-specific contact hypersensitivity. Control animals synthesizing picryl-specific antibody subsequently responded to intradermal injection of picryl chloride with contact-type sensitivity. Interpretations of these results are discussed and the view is presented that delayed-type hypersensitivity and circulating antibodies of the varieties measured here are formed independently of each other.

scholarly journals HYPERSENSITIVITY IN NEWBORN GUINEA PIGS

1962 ◽  
Vol 115 (4) ◽  
pp. 707-722 ◽  
Author(s):  
S. B. Salvin ◽  
M. B. Gregg ◽  
R. F. Smith
Keyword(s):  
Guinea Pigs ◽  
Elimination Rate ◽  
Passive Transfer ◽  
Contact Hypersensitivity ◽  
Delayed Hypersensitivity ◽  
Allergic Encephalomyelitis ◽  
Total Body ◽  
Dose Levels ◽  
Normal Adults ◽  
Circulating Antibody

Neonatal guinea pigs during the first 2 weeks of life did not indicate the presence of delayed hypersensitivity intradermally, after sensitization with purified soluble antigens in dose levels that induced detectable delayed hypersensitivity in the skin of adults. Although Arthus type allergy was detectable in newborns, circulating antibody frequently preceded its appearance by several days. Passive Arthus reactions were not produced in newborns as readily as in adults. Contact hypersensitivity and allergic encephalomyelitis were induced in newborns, but corneal reactions were not. Total body irradiation with 200 r inhibited antibody formation in newborns, as in adults. In addition, the induction period for anamnestic responses in newborns and the antigen elimination rate were the same as in adults. Passive transfer of delayed hypersensitivity from sensitized newborns to normal adults was accomplished.

PASSIVE CUTANEOUS ANAPHYLAXIS INDUCED IN GUINEA PIGS BY INSULINS AND THEIR COMPONENT CHAINS

1966 ◽  
Vol 44 (7) ◽  
pp. 989-996 ◽  
Author(s):  
S. Wilson ◽  
Marie A. Aprile ◽  
Louise Sasaki
Keyword(s):  
Guinea Pigs ◽  
Competitive Inhibition ◽  
The Other ◽  
Passive Cutaneous Anaphylaxis ◽  
Antigenic Determinants ◽  
Enzymic Digestion ◽  
Heterologous Antiserum ◽  
Wide Range ◽  
Homologous Antiserum

Small amounts of purified ox insulin and its component chains provoked passive cutaneous anaphylaxis (PCA) in guinea pigs previously injected intradermally with antiserum to ox insulin. Cod insulin and its chains also yielded a PCA reaction with antiserum to cod insulin, indicating that antibody-combining sites are located on both the A- and B-chains of insulin Enzymic digestion of the chain preparations essentially destroyed their ability to combine with anaphylactic antibodies, although the B-chain digests had some residual PCA reactivity.Ox and cod insulins gave positive PCA reactions with the heterologous antiserum but at higher levels than with the homologous antiserum, and none of the four chain preparations reacted with the heterologous antiserum. These results demonstrated differences between the antibody-combining sites on the chains of ox and cod insulins.Insulins from a wide range of species also yielded a PCA reaction with antisera to cod and ox insulins, suggesting that the different hormone preparations have certain antigenic determinants in common. Immunologic relationships between several insulins were derived from the competitive inhibition of one antiserum by the other when both were present in the same animal.

scholarly journals SBF-1 inhibits contact hypersensitivity in mice through down-regulation of T-cell-mediated responses

2019 ◽  
Vol 20 (1) ◽  
Author(s):  
Wei Chen ◽  
Xianying Fang ◽  
Yuan Gao ◽  
Ke Shi ◽  
Lijun Sun ◽  
...  
Keyword(s):  
T Cells ◽  
T Cell ◽  
T Lymphocytes ◽  
Contact Hypersensitivity ◽  
Immunosuppressive Activity ◽  
Con A ◽  
Activated T Cells ◽  
Picryl Chloride

Abstract Background T lymphocytes play an important role in contact hypersensitivity. This study aims to explore the immunosuppressive activity of SBF-1, an analog of saponin OSW-1, against T lymphocytes in vitro and in vivo. Methods Proliferation of T lymphocytes from lymph nodes of mice was determined by MTT assay. Flow cytometry analysis was performed to assess T cell activation and apoptosis. Levels of cytokines were determined by PCR and ELISA. BALB/c mice were sensitized and challenged with picryl chloride and thickness of left and right ears were measured. Results SBF-1 effectively inhibited T lymphocytes proliferation induced by concanavalin A (Con A) or anti-CD3 plus anti-CD28 at a very low dose (10 nM) but exhibited little toxicity in non-activated T lymphocytes at concentrations up to 10 μM. In addition, SBF-1 inhibited the expression of CD25 and CD69, as well as he phosphorylation of AKT in Con A-activated T cells. SBF-1 also induced apoptosis of activated T cells. In addition, SBF-1 also downregulated the induction of the T cell cytokines, IL-2 and IFN-γ in a dose-dependent manner. Furthermore, SBF-1 significantly suppressed ear swelling and inflammation in a mouse model of picryl chloride-induced contact hypersensitivity. Conclusions Our findings suggest that SBF-1 has an unique immunosuppressive activity both in vitro and in vivo mainly through inhibiting T cell proliferation and activation. Its mechanism appears to be related to the blockage of AKT signaling pathway.

scholarly journals OCCURRENCE OF DELAYED HYPERSENSITIVITY DURING THE DEVELOPMENT OF ARTHUS TYPE HYPERSENSITIVITY

1958 ◽  
Vol 107 (1) ◽  
pp. 109-124 ◽  
Author(s):  
S. B. Salvin ◽  
Keyword(s):  
Lymph Node ◽  
Guinea Pig ◽  
Latent Period ◽  
Guinea Pigs ◽  
Specific Antigen ◽  
Egg Albumin ◽  
Lymph Node Cells ◽  
Type Inclusion ◽  
Antibody Determination ◽  
Circulating Antibody

Guinea pigs were injected in the footpads with either purified diphtheria toxoid or recrystallized egg albumin in Freund adjuvant without mycobacteria. Each guinea pig was then skin-tested only once with the specific antigen and bled for antibody determination. After injection of the sensitizing antigen, a latent period occurred during which neither sensitivity nor circulating antibody could be detected. A period of delayed sensitivity followed wherein circulating antibody could not be discerned and which could be transferred by lymph node cells. Ultimately, the Arthus type sensitivity developed, accompanied by circulating antibody. The duration and severity of reactions to homologous antigens during the last 2 phases varied with the antigen and with the dose. An increase in the sensitizing dose decreased the duration of the delayed type of allergy, a decrease in the dose prolonged the delayed type. Inclusion of mycobacterium in the sensitizing inoculum tended to introduce delayed sensitivity earlier and delay the onset of Arthus type sensitivity. When specific precipitate in antibody excess was included with the toxoid in the sensitizing dose, the onset of the Arthus phase was hastened. When lymph nodes from a large number of sensitized donors were removed during the latter part of the latent period, recipients of the cells showed a delayed type sensitivity.

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